How to choose your first telescope

Aperture beats magnification

Aperture — the diameter of the main lens or mirror — is the single most important spec. It determines how much light the telescope gathers and how much detail you can see. Ignore the giant '500x!' magnification claims on the box; those are marketing, and high power on a small scope just shows a big, dim blur.

For a first scope, look for at least 100–150mm (4–6 inches) of aperture. More aperture shows fainter galaxies and finer planetary detail — but also costs more and weighs more.

The three main types

Each design trades cost, portability, and what it's best at. There's no single 'best' — only best for you.

• Refractors — lens-based, low-maintenance, great on the Moon and planets; pricey per inch of aperture
• Reflectors (Newtonians) — mirror-based, the most aperture for your money, superb for deep-sky; bulkier
• Compound (SCT / Maksutov) — compact tubes with long focal lengths, versatile, often go-to capable; cost more

Don't skimp on the mount

A great telescope on a wobbly mount is useless — every touch sends the image shaking. A stable mount is half the experience.

A simple Dobsonian (a Newtonian reflector on a smooth rocker base) gives beginners the most aperture and the least frustration for the money. Motorized 'go-to' mounts find objects for you but add cost and setup; decide whether you'd rather learn the sky or let the scope do it.

Realistic first-night expectations

The Moon will be jaw-dropping. Saturn's rings and Jupiter's moons are easy and unforgettable. Bright star clusters and a few nebulae will show from dark skies. But faint galaxies look like grey smudges, not the colourful Hubble photos — that's normal, and dark skies help enormously.

Plan around darkness and the seeing forecast — Stella tells you which nights the air is steady enough for crisp planetary views.